Add 72/4 and 12/7
1st number: 18 0/4, 2nd number: 1 5/7
72/4 + 12/7 is 138/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
72/4 = 72 × 7/4 × 7 = 504/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
12/7 = 12 × 4/7 × 4 = 48/28 - Add the two like fractions:
504/28 + 48/28 = 504 + 48/28 = 552/28 - 552/28 simplified gives 138/7
- So, 72/4 + 12/7 = 138/7
In mixed form: 195/7
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